Cannot get cURL to load in PHP on Windows Apache

Question

I am not familiar at all with setting up an Apache/PHP web server, but I have to do this since my IT staff won't. I've looked at everything I can find online, and I just can't get cURL to load in PHP on windows apache. I installed Apache 2.2, it works. I installed PHP, and that works, which I know because my php script checks to ensure the cURL extension is loaded, and my php echo is returned to the browser, my code for that is shown below:

  if (!extension_loaded("curl")) {
     header('Status: 500', true, 500);
     echo 'cURL extension for PHP is not loaded! <br/> Add the following lines to your php.ini file: <br/> extension_dir = &quot;&lt;your-php-install-location&gt;/ext&quot; <br/> extension = php_curl.dll';
     return;
  }

I've done the following:

I've uncommented extension_dir="c:\php\ext\" (and tried numerous variations of that path, using forward and backward slashes, etc., as well as the ./ext/ approach).
I've ensured I have extension=php_curl.dll in my php.ini.
I've made sure that my apache user has read and execute permissions on the PHP folder and all subfolders/files
I've made sure I have C:\PHP in my path environment variable.
I've tried the suggestions here: Could not load php_curl, and here: PHP cURL is not loaded on modifying php.ini, as well as many others outside of StackOverflow.

Nothing has worked. I'm running on a Windows Server 2003 box. I get no error message in the Apache log. I'm stuck. Please help! Thanks.

Adding requested Apache log info:

[Tue Aug 14 14:38:22 2012] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Tue Aug 14 14:38:23 2012] [notice] Apache/2.2.22 (Win32) PHP/5.2.17 mod_ssl/2.2.22 OpenSSL/0.9.8t configured -- resuming normal operations
[Tue Aug 14 14:38:23 2012] [notice] Server built: Jan 28 2012 11:16:39
[Tue Aug 14 14:38:23 2012] [notice] Parent: Created child process 5616
[Tue Aug 14 14:38:24 2012] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Tue Aug 14 14:38:25 2012] [notice] Child 5616: Child process is running
[Tue Aug 14 14:38:25 2012] [notice] Child 5616: Acquired the start mutex.
[Tue Aug 14 14:38:25 2012] [notice] Child 5616: Starting 64 worker threads.
[Tue Aug 14 14:38:25 2012] [notice] Child 5616: Starting thread to listen on port 8080.

Check your php cli output by open cmd, then cd into directory and type "php.exe -v", in first line, you should see the error why its dont loaded. Then share results with us, so we can help you. — Burak Tamtürk
– Burak Tamtürk, Commented Aug 14, 2012 at 18:52
I received literally nothing in the cmd window running php.exe -v — Shawn
– Shawn, Commented Aug 14, 2012 at 18:55
Does function_exists('curl_init') also return false? I'm wondering if it is extension_loaded() that is broken. Also, remember that the php.ini configuration used by the Apache mod_php SAPI is only loaded when Apache is started (not every request) so you need to restart the Apache service after you modify php.ini. If an extension is unloadable based on the php.ini settings, you will usually see errors logged in the Apache error log at startup with a helpful(ish) error message. — DaveRandom
– DaveRandom, Commented Aug 14, 2012 at 18:56
@DaveRandom I'm not a PHP programmer; I just have to use a php proxy with my ESRI javascript website, so the extension_loaded() function is just the php api call. How do I test if function_exists('curl_init') returns false? — Shawn
– Shawn, Commented Aug 14, 2012 at 18:59

Fred Wuerges · Accepted Answer · 2013-09-24 16:46:10Z

If you install PHP, Apache in Windows operating system then following step can help you to run php_curl.dll smoothly.

Find the location of php.ini (probably in C:\Windows) file and open it. Then uncomment (remove semi-colon(;) from ;extension=php_curl.dll) the line and save the file.
Make sure that php_curl.dll is exist in your PHP extension directory (C:\php\ext). This extension path define in your php.ini file.
Copy php4ts.dll (if you use PHP4) or php5ts.dll (if you use PHP5), libeay32.dll and ssleay32.dll to the C:\WINNT (Windows 2000) or C:\Windows (Windows 2003) directory. If php4ts.dll or php5ts.dll not found in your computer then search in google and download. Other two dll can found in the dlls directory of your PHP directory (may be in C:\php\ext)
Restart Apache service.

Check again that cURL is enable. If not then restart your computer.
Now run script again and see your php_curl is now working smoothly.
If not then, copy above 3 dll file (describe in no.3) to your PHP root directory (may be C:\php) and also in Windows system32 directory (C:\Windows\system32).

Now run smoothly your php cURL script. Have a nice day.

Gavin · Accepted Answer · 2013-10-18 09:30:10Z

1

For Windows 7 64bit I had to copy php_curl.dll, libeay32.dll and ssleay32.dll into \Windows\SysWOW64.

answered Oct 18, 2013 at 9:30

Gavin

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